Cita APA (7a ed.)

Harvard health letter / from Harvard Medical School [Harv Health Lett] NLMUID: 9425764.

Cita Chicago Style (17a ed.)

Harvard Health Letter / from Harvard Medical School [Harv Health Lett] NLMUID: 9425764.

Cita MLA (8a ed.)

Harvard Health Letter / from Harvard Medical School [Harv Health Lett] NLMUID: 9425764.

Precaución: Estas citas no son 100% exactas.